Tunnelling MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Tunnelling, a fundamental topic in the field of Civil Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Tunnelling MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Tunnelling mcq questions that explore various aspects of Tunnelling problems. Each MCQ is crafted to challenge your understanding of Tunnelling principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Civil Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Tunnelling MCQs are your pathway to success in mastering this essential Civil Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Tunnelling. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Tunnelling knowledge to the test? Let's get started with our carefully curated MCQs!

Tunnelling MCQs | Page 3 of 5

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Q21.
Which one of the following methods is adopted for permanent drainage of tunnels :

a.

provision of longitudinal drains

b.

continuous open drains

c.

concrete lining

d.

All the above.

Discuss
Answer: (d).All the above.
Q22.
Pick up the correct statement regarding drilling a tunnel from the following:

a.

Holes are drilled by pneumatically operated rock drills

b.

One drill is required for each 4 to 5 m² force area

c.

The diameter of the bore hole at the deepest point should be 6 mm more than the diameter of the cartridge

d.

All of the above.

Discuss
Answer: (d).All of the above.
Q23.
For tunnels exceeding 300 m in length, the grade should be provided below

a.

50% of the ruling gradient

b.

60% of the ruling gradient

c.

75% of the ruling gradient

d.

80% of the ruling gradient.

Discuss
Answer: (c).75% of the ruling gradient
Q24.
The method of draining in the tunnels, is generally known as

a.

foredrainage

b.

dewatering

c.

permanent drainage

d.

All of the above.

Discuss
Answer: (d).All of the above.
Q25.
Pick up the correct statement from the following during tunnel excavation,

a.

Oxygen should not be less than 19.5%

b.

Carbondioxide should not be more than 0.5%

c.

Hydrogen sulphide should not be more than 0.001%

d.

All of the above.

Discuss
Answer: (d).All of the above.
Q26.
To attain the required shape of the tunnel section, we use :

a.

easers

b.

trimmers

c.

cut holes

d.

chisels.

Discuss
Answer: (b).trimmers
Q27.
Pick up the mechanical ventilation method used for tunnels from the following:

a.

blowing fresh air by ducts to the face of tunnel

b.

exhausting foul air by ducts from the face of the tunnel and permitting fresh air through the tunnel

c.

blowing fresh air and exhausting foul air by ducts

d.

all the above.

Discuss
Answer: (d).all the above.
Q28.
Which one of the following methods of tunnelling does not require the use of time bearing :

a.

Linear plate method

b.

Shield method

c.

Compressed air method

d.

All the these.

Discuss
Answer: (d).All the these.
Q29.
For highways, tunnelling is preferred to if the open cut exceeds :

a.

10 metres depth

b.

15 metres depth

c.

20 metres depth

d.

25 metres depth.

Discuss
Answer: (b).15 metres depth
Q30.
The following operations are required for tunnelling in rocky terrain :

1. Removing the foul gases
2. Marking the tunnel profile
3. Setting up and drilling
4. Checking misfire
5. Mucking

The correct sequence is :

a.

1 2 3 4 5

b.

2 3 5 4 1

c.

4 2 1 3 5

d.

2 3 1 4 5

Discuss
Answer: (d).2 3 1 4 5
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